The eldest son of General
Sir John Doran and Georgina Magrath, Beauchamp Doran was commissioned as a
second lieutenant into the
16th Regiment of Foot in January 1880, before transferring to the 18th Foot (shortly to become the
Royal Irish Regiment) later that month. He served with the 1st Battalion in the
Second Anglo-Afghan War that same year, and was promoted to
lieutenant on 1 July 1881. He later participated in the 1884–85
Nile Expedition, where he was
mentioned in despatches and given a
brevet promotion to
major in May 1887, in the
Hazara Expedition of 1888, and in the
Miranzai Expedition of 1891, where he acted as
brigade major. In November 1891 Doran was appointed to a staff position overseeing musketry standards in the
Bengal Army, transferring to the Punjab to take up the same post in 1895. In 1897, he was mentioned in despatches for his service in staff duties with the
Kohat-Kurram expedition, and again in 1898 for his work as deputy assistant
adjutant-general in the
Tirah Expedition, both on the
North-West Frontier of
India. The following year he was back in
Sudan, where he was in charge of the 9th Sudanese Battalion during operations leading to the defeat of the
Khalifa in the
Battle of Umm Diwaykarat in November 1899 (mentioned in despatches on 25 November 1899). ==Second Boer War==